package learn.heap;

import java.util.HashMap;

public class Test {
    public static void main(String[] args) {
        HashMap<Integer, String> m = new HashMap<>();
        m.put(new Integer(1000000000),"1");
        m.put(new Integer(1000000000),"1");
        m.put(new Integer(1000000000),"1");
        System.out.println(m.size());

        System.out.println(new Integer(1000000000).hashCode());
        System.out.println(new Integer(1000000000).hashCode());
        System.out.println(new Integer(1000000000).hashCode());

    }
}
